Re: Dell 2408WFP PSU inductors

Thanks RJ for your response.
You're spot on with your suggestion, this looks like the exact part. I've ordered a pack of 5.
It may not be faulty. What makes it suspect is a burn mark on the inductor itself as well as on the PCB. You can see the burn mark in that 2nd picture.
The resistance measures the same as the other one that I tested, so this may indicate that it is still in working order. But I would rather replace it to be safe.
Do those beads have an actual inductance? I looked at the datasheet and it is not mentioned....

Re: Dell 2408WFP PSU inductors

Going to try to answer my own question after doing some further research.
Found a website that explains how to measure the inductance using a series resistor and applying a sine wave with a function generator. Then measure the applied voltage against the voltage at the inductor/resistor junction.
Using a 10R resistor and a 3MHz sine wave, the voltage drop across each component was equal. Using the supplied formula (L= R*sqrt(3)/(2*pi*f) when measuring across the resistor) the inductance came to 1uH.
I compared this against a couple...

Re: Dell 2408WFP PSU inductors

Forgot to mention.
The footprint of the inductor is approx 5mm length x 3mm diameter.

Hello all,
My first post here. I'm just a hobbyist with a basic understanding of electronics.

Been reading a lot about this Dell 2408WFP monitor in various posts on this site and they've been useful.
I have the same issue with this display that others have experienced in that the display does not turn on after it has been disconnected from power.
This happened again a few days ago and this time I could not get it back to life, even after repeatedly disconnecting / connecting the power.
So I opened it up to have a look, especially bad caps. Did not find...

Re: Dell 2408WFP no picture

For what it is worth in case this thread is still live.
The problem described by the poster is identical to what is covered by this thread:
[url]https://www.badcaps.net/forum/printthread.php?t=18189&pp=40[/url]
A work-around is provided here.Re: Dell 2408WFP no picture<br /> <...work-around is